These are my notes on how to install a D Programming Language compiler along with it’s package management tool Dub and how to set-up a first “Hello World” project on a Raspberry PI running Raspbian. I’ve chosen the GDC compiler due to its comprehensive architecture support (https://wiki.dlang.org/Compilers#Comparison), and ease of install: sudo apt-get install -y […]
PHP 7 introduces scalar type definitions: your function parameters can be of a given type, and function return type declarations ensuring your function will return results of a given data type. This can increase your code quality by enforcing a specific behaviour of your code, almost similar to how a strongly typed language does. However, […]
Recently, I have been experimenting with writing 3D games – mainly for mobile Virtual Reality. Today I though I might want to have a go at writing a desktop 3D game, and played with Electron, NodeJS and BabylonJS so I can write my code in JavaScript and use HTML5 to develop my own cross-platform 3D […]
PHPUnit and Selenium provide means for testing application functionality. But how can you test your application’s performance? Here Apache JMeter comes in handy, as a tool used for load testing functional behaviour and measure performance. JMeter is a desktop application, written in Java, made available as a package on most Linux distributions. It can be […]
This is a quick note on how to create a multi-user git server hosted on your own FreeBSD set-up, using the SSH protocol for reading/writing from/to repositories. Steps to follow (as ‘root‘): Install the ‘git‘ package: pkg_add -r git Create a group called ‘gitusers‘: pw groupadd gitusers Create a user called ‘gitserver‘, part of the […]
In the previous part of this article, I wrote an introduction to Node.js and Socket.Io; presenting a basic server and client communication model. In this entry I am writing an extension to the Server and Client JavaScript objects, to allow for Application Specific Events. This provides the basic framework to writing an application that routes […]
Below is a minimal step by step guide on installing CodeIgniter 2.1.4. The assumptions are that your using either Ubuntu or Debian, with a GIT + Apache + PHP + MySQL stack available. Step 1: Clone the CodeIgniter repository CodeIgniter is available either as a compressed tarball, or as a git repository. The latter is […]
In Part 1 of Web Application Performance Testing using Apache JMeter I wrote about how to install Apache JMeter and create a test. In this part I am writing about how to monitor server resources, using the PerfMonAgent Server Agent and the PerfMon Metrics Collector Listener plugin. These are particularly useful when trying to measure the impact over […]
Playing with my Raspberry PI and its GPIO over the weekend it occurred to me I would be able to control it in real time from a browser, using Socket.IO and pi-gpio. Here is a link to my Github code for doing so: https://github.com/fgheorghe/jsGPIO. The JSGPIOServer module creates an HTTP server handling Socket.IO events, producing […]
This entry documents how to install and configure the WSO2 API Manager, on Debian Linux 7. WSO2 API Manager is a tool for publishing APIs, with features such as: API Store Publishing and Governing API API Traffic routing Developer Community Govern Complete API Lifecycle Performance monitoring Further details available on the vendor’s website, http://wso2.com/products/api-manager/. A good […]